INVARIANT PATTERN RECOGNITION USING RING-PROJECTION AND DUAL-TREE COMPLEX WAVELETS

摘要：

　　A novel descriptor is proposed for invariant pattern recognition by using ring-projection and dual-tree complex wavelets.The ring-projection takes the summation of all pixeis that lie on the circle with radius r and centre at the centroid of the pattern.This transforms the pattern from a 2-D image to a 1-D signal,so less memory is needed and it is faster than existing 2-D descriptors in the recognition process.Dual-tree complex wavelet transform is applied to the ring-projection since it has the approximate shift-invariant property,which is very important in pattern recognition.Experimental results show that the proposed descriptor in this paper is a feasible choice for invariant pattern recognition.

关键词： Wavelet transform ring-projection dual-tree complex wavelets invariant features optical character recognition (OCR) pattern recognition Gaussian white noise

作者: GUANG-YI CHEN WEN-FANG XIE

作者单位: Department of Mechanical and Industrial Engineering, Concordia University, Montreal, QC, Canada H3G 1M8.

会议类型: 国际会议

会议名称: 2011 International Conference on Wavelet Analysis and Pattern Recognition(2011小波分析与模式识别国际会议)

会议地点: 桂林

会议语种:英文

页码: 182-186

在线出版日期: 2011-07-10（万方平台首次上网日期，不代表论文的发表时间）